Some owners of 2008 Buick Allure, LaCrosse and Lucerne vehicles equipped with the 3800 engine (VIN Code 2) may comment that the SES light is on.

Upon inspection with a Tech 2, you may find DTC P0106 (manifold absolute pressure sensor performance). 

GM Engineering has developed a new ECM calibration to correct the concern. Reprogram the ECM with the latest calibration. There should be no need to replace the MAP sensor.